CYCAS is a 2D+3D CAD package for drafting and design in high quality and for creating 3D presentations and technical illustrations easily.

Some of its features include an easy-to-handle user interface, special architectural elements and functions, a WYSIWYG display, printing, plotting, import and export filters, photorealistic rendering with POV-Ray, documentation and tutorials, example drawings, and an extendable 2D/3D symbols library.

Easy to handle. Dialog boxes to design drawing elements easily with a database function to improve work flow. A layer technique which is flexible to employ.

It simulates working with transparency sheets. HTML online help, illustrated with many graphics. Graphical user interface based on GTK (The Gimp Toolkit).